SFM-135-L2-S-D-LC-P Equivalent & Substitute Parts

Part Overview

The SFM-135-L2-S-D-LC-P is a 70-position receptacle connector from Samtec Inc.'s Tiger Eye™ SFM series, designed for surface mount board-to-board or cable applications. This connector features 0.050" (1.27mm) pitch mating with gold-plated female socket contacts rated for 3.2A per contact at 250VAC. The part is currently active in production with ROHS3 compliance and UL94 V-0 flammability rating. Identifying equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain compatibility across manufacturing batches.

Substiute Parts

SFM-135-L2-S-D-LC-P

Samtec Inc.In Stock: 1147SFM-135-L2-S-D-LC-P Datasheet

Current PartRFQ

SFM-135-02-S-D-LC-P

Samtec Inc.In Stock: 868SFM-135-02-S-D-LC-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFM-135-L2-S-D-LC-P is determined by strict equivalence across the following critical parameters:

• Connector type (Receptacle)
• Contact type (Female Socket)
• Number of positions (70)
• Pitch - mating (0.050" / 1.27mm)
• Number of rows (2)
• Row spacing - mating (0.050" / 1.27mm)
• Mounting type (Surface Mount)
• Termination method (Solder)
• Fastening type (Push-Pull)
• Contact finish - mating (Gold)
• Current rating (3.2A per Contact)
• Voltage rating (250VAC)
• Operating temperature range (-55°C ~ 125°C)
• Insulation material (Liquid Crystal Polymer)
• Contact material (Beryllium Copper)
• Compliance status (ROHS3, UL94 V-0)

The substitute part SFM-135-02-S-D-LC-P meets all these criteria and is therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

Both the SFM-135-L2-S-D-LC-P and SFM-135-02-S-D-LC-P are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability: the SFM-135-L2-S-D-LC-P has 1116 pieces in stock, while the SFM-135-02-S-D-LC-P has 785 pieces available. Both parts carry ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications. The parts are functionally equivalent for all board-to-board or cable connection applications requiring 70-position, 0.050" pitch surface mount receptacle connectors with gold-plated contacts.

Frequently Asked Questions (FAQ)

Q: Are SFM-135-L2-S-D-LC-P and SFM-135-02-S-D-LC-P directly interchangeable?

A: Yes. Both parts are identical in electrical and mechanical specifications, including connector type, position count, pitch, mounting method, contact materials, and performance ratings. They are direct substitutes.

Q: What determines if a part can substitute for the SFM-135-L2-S-D-LC-P?

A: A substitute must match all critical parameters: 70-position receptacle configuration, 0.050" (1.27mm) pitch in a 2-row arrangement, surface mount solder termination, push-pull fastening, gold-plated female socket contacts, 3.2A per contact current rating, 250VAC voltage rating, -55°C to 125°C operating temperature, beryllium copper contact material, and LCP insulation with UL94 V-0 and ROHS3 compliance.

Q: Can I use these connectors in high-temperature applications?

A: Both parts are rated for operating temperatures from -55°C to 125°C. Applications requiring operation outside this range require alternative connector selection.

Q: What is the current handling capacity per contact?

A: Each contact is rated for 3.2A at 250VAC. Total system current capacity depends on the number of loaded positions and circuit design.

Q: Are these parts RoHS compliant?

A: Yes. Both SFM-135-L2-S-D-LC-P and SFM-135-02-S-D-LC-P are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the moisture sensitivity level?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.